Long Covid syndrome occurs only in a subset of the population and manifests itself with the combination of the following symptoms: brain fog, headaches, insomnia, anxiety and depression, loss of sense of smell, cognitive impairments, loss of thinking ability, reduced attention span, easy fatiguability, extreme exercise intolerance, chronic cough, shortness of breath, abnormal heart rates, inability to concentrate and to work. Long Covid syndrome is not yet officially recognized as disability, and not covered by many health insurance companies.